Abstract: Based on $58 \times 10^6 $ $J-\psi$ events collected by BESII, the decay$J-\psi \to K^{\pm} K s \pi^{\mp} \pi^0$ is studied. In the invariant massspectrum recoiling against the charged $K^*892^{\pm}$, the charged $\kappa$particle is found as a low mass enhancement. If a Breit-Wigner function ofconstant width is used to parameterize the kappa, its pole locates at $849 \pm77 ^{+18} {-14} -i 256 \pm 40 ^{+46} {-22}$ MeV-$c^2$. Also in this channel,the decay $J-\psi \to K^*892^+ K^*892^-$ is observed for the first time.Its branching ratio is $1.00 \pm 0.19 ^{+0.11} {-0.32} \times 10^{-3}$.